E3 2015 looks like it may come early, with a Nintendo Direct broadcast announced for this weekend.
So far only confirmed for Japan, this will air at 7pm JST (11am BST / 12pm CEST) and has been confirmed to cover Wii U and Nintendo 3DS games releasing throughout summer.
The company’s last showcase was a Splatoon Direct in early May, with a Nintendo Digital Event confirmed for E3 2015 on Tuesday 16th June that will detail “games and experiences” across Wii U and Nintendo 3DS.
— 任天堂株式会社 (@Nintendo) May 29, 2015
[Thanks to Cheesemeister3K for the translation]